| article html file updated | 17 June 2020 09:02 CEST | Original file | https://www.mdpi.com/2673-3161/1/2/9 |
| article pdf uploaded. | 17 June 2020 09:01 CEST | Updated version of record | https://www.mdpi.com/2673-3161/1/2/9/pdf |
| article xml uploaded. | 17 June 2020 09:01 CEST | Update | https://www.mdpi.com/2673-3161/1/2/9/xml |
| article xml file uploaded | 17 June 2020 09:01 CEST | Update | - |
| article pdf uploaded. | 29 April 2020 16:53 CEST | Version of Record | https://www.mdpi.com/2673-3161/1/2/9/pdf-vor |
| article xml file uploaded | 29 April 2020 16:53 CEST | Original file | - |
